Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Bulgarian
-осам
←
Bulgarian
-ам
(affix)
←
Ancient Greek
-ωσα
(derived)
←
Proto-Slavic
*-ati
(cognate)